I've used all three lenses mentioned....
Each has its own unique traits/character....but I preferred the uniqueness that came from the CV 125 most...
If you're after bright colors....choose Leica
If you're after 3D look.... Go for Zeiss

CV 125's rendering has indescribable mood, so to speak...
Also, its lack of CA is just unbeatable...
Close up portrait with this lens is a sight to behold...